Security Business

JUN 2019

Find news and information for the executive corporate security director, CSO, facility manager and assets protection manager on issues of policy, products, incidents, risk management, threat assessments and preparedness.

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30 Security Business / / June 2019 Back to School SECURITY Shot Tracer’s IP sensors so that when a gunshot occurs, the alert is transmitted to a cloud-based server, which then sends an alert to a security officer’s cell phone or to the local emergency dispatch. “Every minute counts when it comes to gunshot detection,” says Allan Overcast, CEO of Shot Tracer. “It takes on average of six minutes for someone to call 911 when a shooting occurs. With Shot Tracer, it takes five seconds for safety officers to receive an alert that a shooting has occurred and where it has happened.” Many gunshot detection systems require a network connection, which could potentially be problematic during an active shooter event or terrorist attack. Shot Tracer’s AP gunshot detection sensors do not require a connection to network infrastructure. They are self-contained and the data gathered by the sensors does not need to be off-loaded to a server, which also eliminates additional points of potential failure. Shot Tracer sensors use signal processing to transmit information, which means they can also be integrated with access control systems, which is crucial in containing an active shooter to a limited area. Combining Acoustics with Infrared and AI Gunshot detection systems such as AmberBox include sensors with both acoustic and infrared sensing capabilities. Artificial intelligence and machine learning capabilities can also reduce false alarms significantly. Sensors that include infrared technology detect what is known as muzzle flash – the visible light created when a shot is fired that is caused by the combustion of gunpowder mixing with the ambient air. The sounds detected by the sensor(s) are compared with gunshot sound samples and other sounds to confirm that the sound was a gunshot and not something else, such as thunder or someone dropping a large object. “Each sensor contains a library of 3,000 gunshot samples and other sounds to which the detected sound can be compared,” explains AmberBox CEO James Popper. “In a matter of seconds, the sensor analyzes infrared and acoustic data and determines whether a gunshot has been fired.” When the gunshot has been detected and verified, AmberBox sensors send an alert through a wireless MESH network to automatically initiate a 911 call to local emergency dispatch, while also notifying on-site security officers via email, text message or phone call. Shot Spotter, winner of the 2018 AST Homeland Security Award for Best Shot Detection System and one of the most well-known manufacturers of gunshot detection systems, also makes sensors with both acoustic and infrared detecting capabilities and artificial intelligence. In order to reduce false alarms, once an incident has been determined to likely be a gunshot, the data from the sensor(s) is sent to Shot Spotter’s monitoring center (Incident Review Center) for analysis by a human. If the analyst determines that the event is a gunshot and not a false alarm, he/she uses the system to send alerts to local law enforcement and emergency dispatchers. Many gunshot detection systems can pinpoint and track the location of an active shooter. This can also be achieved via VMS and access control integration. Photo: Shooter Detection Systems The Guardian Indoor gunshot detection systems use a combination of acoustic and infrared detection. Photo: Shooter Detection Systems

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